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use std::io::{Error, ErrorKind, Result};
use log::debug;
use crate::message::{self, compress, Compressor};
impl Compressor for message::get_accepted_state_summary::Message {
fn compress_with_header(&self) -> Result<bytes::Bytes> {
let type_id = message::TYPES
.get("get_accepted_state_summary")
.ok_or_else(|| Error::new(ErrorKind::InvalidInput, "unknown type name"))?;
let packer = message::default_packer();
packer.pack_bytes(self.chain_id.as_ref())?;
packer.pack_u32(self.request_id)?;
packer.pack_u64(self.deadline.as_nanos() as u64)?;
packer.pack_u32(self.heights.len() as u32)?;
for height in self.heights.iter() {
packer.pack_u64(*height)?;
}
let bytes_uncompressed = packer.bytes_len();
let compressed = compress::pack_gzip(&packer.take_bytes())?;
let bytes_compressed = compressed.len();
let packer = message::default_packer_with_header();
packer.pack_byte(*type_id)?;
packer.pack_bool(true)?;
packer.pack_bytes(compressed.as_ref())?;
if bytes_uncompressed > bytes_compressed {
debug!(
"get_accepted_state_summary compression saved {} bytes",
bytes_uncompressed - bytes_compressed
);
} else {
debug!(
"get_accepted_state_summary compression added {} byte(s)",
bytes_compressed - bytes_uncompressed
);
}
Ok(packer.take_bytes())
}
}
#[test]
fn test_message() {
use crate::ids;
use avalanche_utils::cmp;
let msg = message::get_accepted_state_summary::Message::create(
ids::Id::empty(),
7,
std::time::Duration::from_secs(10),
vec![0x10, 0x11, 0x12],
);
let data = msg.compress_with_header().unwrap();
let expected_data: &[u8] = &[
0x00, 0x00, 0x00, 0x37,
0x19,
0x01,
0x1f, 0x8b, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xff, 0x85, 0x88, 0xb1, 0xd, 0x0, 0x0, 0x4,
0x4, 0x85, 0x42, 0xa1, 0xc1, 0x6c, 0xf6, 0xaf, 0xc, 0x82, 0xe4, 0x7b, 0x9f, 0x7c, 0xee,
0x72, 0x44, 0xef, 0x74, 0xcf, 0x65, 0x7d, 0x2e, 0x68, 0xe, 0x6, 0x98, 0x3, 0x5c, 0xa5,
0x13, 0x78, 0x48, 0x0, 0x0, 0x0,
];
assert!(cmp::eq_vectors(expected_data, &data));
}